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Installing roof lights or roof lanterns is a brilliant way to flood your home with natural light, enhance ventilation, and improve the look and feel of any space. Whether you’re planning a loft conversion or simply updating your flat roof, you might be wondering if you need planning permission.

Do You Need Planning Permission for Roof Lights in the UK?

In most cases, planning permission for roof lights is not required, thanks to something called Permitted Development rights. However, this only applies if specific conditions are met:

  • The roof lights or lanterns must not project more than 150mm above the existing roof plane.
  • They cannot be higher than the highest part of the roof.
  • If the roof lights face a road and are on the principal elevation, permission may be needed.
  • For roof lanterns on a flat roof, the same 150mm height restriction applies.

When Is Planning Permission Required?

You may need to apply for planning permission if:

  • Your home is in a conservation area, an area of outstanding natural beauty, or a listed building.
  • You’re carrying out a larger extension, loft conversion, or altering the roof structure.
  • The design significantly alters the external appearance of your property.

Ensure you check with your local planning authority before work begins.

Do Roof Lights Need to Comply with Building Regulations?

Yes, even if planning permission isn’t required, roof lights and roof lanterns must comply with UK Building Regulations. These cover important areas such as:

  • Thermal performance and energy efficiency
  • Ventilation and fire safety
  • Structural integrity and waterproofing

Expert Roof Light Installation Across the UK

At Essex Window and Door Centre, we specialise in the supply and installation of high-quality roof lights, roof lanterns, windows, and doors across the UK. Our experienced team ensures all work complies with current regulations and provides honest advice on whether planning permission is needed.

If you’re planning to transform your space with natural light, contact us today for a free, no-obligation quote and expert guidance on your roof light project.

Essex Window & Door Centre
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